TerreStar 1 is the world's largest commercial communications satellite to provide mobile services across North America.
TerreStar 1 will be maneuvered into a circular geostationary orbit over the next week, eventually parking itself above the equator at 111 degrees West longitude to cover the United States, Canada, Puerto Rico and the U.S. Virgin Islands.
Weighing some 15,235 pounds [6,910 kg] at launch, this powerhouse satellite is designed for a new generation of mobile communications using regular-size handsets and the elimination of the large antenna on existing satellite phones.